Mouthpiece of horns for automobiles and the like.



l L. A. BRETONNEAU. MOUTHPIBOB 0I' HOBNS FOR AUTOMOBILES AND THB LIKE.

APPLIoATIoN FILED JULY ,8, 190e.

945,371 Patented Jan. 4, 1910.

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Winesses g LOUIS ALBERT BRETONNEAU, OF PARIS,A FRANCE.

MOUTHPIECE OF HOB/NS FOR AUTOMOBILES AND THE LIKE.

Specification of Letters Patent.

Patented Jan. 4, 1910.

Application filed July 8, 1908. Serial No. 442,606.

To all whom it may concern:

Be it known that I, LOUIS ALBERT BRETON- NEAU, a musical-instrument maker, residing at Paris, in the French Republic, have invented certain new and useful Improvements in the Mouthpieces of' I-Iorns for Ai'itomobiles and the Like, of which the following is a specification.

This invention relates to improvements in detachable metallic reeds for the mouthpieces of horns for automobiles, bicycles and the like, in order to permit the easy removal of the reed its regulation and easy cleaning, without destroying the mouthpiece, to which it is applied.

Different types of the improved reed, according to the said invention are illustrated in the accompanying drawing.

Figure 1 is a longitudinal section of the mouthpiece, provided with its removable reed. Fig. 2 is a longitudinal section oit' the reed holder. Fig. 3 is a cross section, according to the line III-III of the Fig. 1, of the reed in position in the holder. Fig. t is a cross section, according to the line IV-IV of the Fig. 1, showing the reed-holder, provided with the reed and the key serving to ix the latter to the mouthpiece. Fig. 5 is a plan view of the Fig. 2. Fig. 6 is a side View of the mouthpiece, provided with its removable reed, but not mounted on the horn. Fig. 7 is a crosssection, according tothe line VIIVII of the Fig. 1.l Fig. 8 is a View showing an arrangement of' the mouthpiece on the air supply pipe. Fig. 9 is a view showing an alternative arrangement of the reed on the tube holding the mouthpiece.

The mouthpiece of the horn consists of: Firstly, a reed holder B, consisting in a semicircular body terminated at its front end by a kind of spoon, or inclined surface, shaped so as to leave, at E, a free space for the passage of the air. Secondly, a metal reed A perfectly smooth, and of the same width as the reed holder B on which it is placed, the said reed being able to vibrate under action of the passage of the air at E. Thirdly, a key C serving to keep in its setting the reed holder provided wlth its reed. Thls setting, is composed of a joint pipe T,

rovided with a screw thread V, and, at its front end, with a male cone M which is slit at S. The reed-holder, provided with the reed A and the key C, is first introduced into this front part, the final fixing of the whole being assured in the following manner.

A socket D is screwed on to the joint pipe T of the horn, and is provided with a conical piece F, correspondintothe conical piece M. Owing to the tightening of the socket caused by the screwing of' the latter on the pipe T, -the cone F comes into contact with the walls of the conical piece M, and the pressure, continuing under the action of the inclined surfaces of' the cones l\[ and F, the slits S in the piece M are closed, and the reed is held firmly in its position.

The whole arrangement of the mouthpiece consisting of the metallic reed A, of the reed-holder B, of the key C fixing the pieces A and B on to the joint pipe T, and of the conical socket D, is then introduced into a tube R, which is connected to the air Supply pipe. This tube R is soldered, at one end, to the socket D, and carries, at the other end, a -joint P, which is connected to the connection to the bag supplying the compressed air in the apparatus.

In Fig. 8, another arrangement for fitting the mouthpiece holder is shown. The socket D is made a very tight fit in the tube R, which is provided with slits G, for the purpose to insure the connection of the parts D and R together. In order to change or remove the reed, for any purpose, it is sufficient to unscrew the tube T fixed to the socket D. The mouthpiece holder is then independent of the joint R, and the cone M no longer holds the key C which keeps the reed A in position; then, the latter can be easily replaced, regulated, or cleaned as desired.

In the modification of Fig. 8, the socket D is provided with a milled ortion I-I, which allows the slacking back o the conical portion F, when the socket D has been disconnected from the joint R. In both cases the independence of the reed, and of the parts carrying it is assured, and this permits the partial changing of these parts, their modification, regulation and cleaning, without necessitating the destruction of the whole.

In Fig. 9 another arrangement is shown. According to this modification of the said invention, the joint pipe R is direct-ly screwed on the socket D, the latter being provided with a conical part havin slits S, on which is screwed the corresponc ing conical part F of the pipe T.

Having non' partieularli/ described and ascertained the nature of my Said invention, and in what manner the Same is to be performed, I declare that what -I claim is:

In a mouthpiece for horns for sintomo biles, a screw-threaded joint-pipe provided :it its outer end With a slitted tapering eX- tension, a reed holder resting Within said tapering extension, a reed detaehably earried by the reed holder, a detachable key securing the reed and reed holder within the tapering e.\:tension7 a screw-threaded Socket engaging the thread of the joint-pipe and provided with a part tapered oppositely to the joint pipe, in combination with a circular pipe rigidly secured to the socket, the pipe inclosing the reed and reed holder, and having at the end opposite the joint pipe an opening leading to the compressed air supply.

In Witness whereof I have hereunto Set my ha nd in the presence of two Witnesses.

LOUIS ALBERT BRETONNEAU. Titnesses PAUL JOSEPH EDOUARD CARON,

H. C. COXE. 

